Work holder supported and clamped between vise jaws



c. M. SCHMITT 2,645,963

WORK HOLDER SUPPORTED AND CLAMPED BETWEEN VI SE JAWS July 21, 1953 Filed Aug. 27, 1951 I P. A g\\\\\\\\\\\\\\\\\\\\\\\\ Carl M. Schmifl INVENTOR.

Patented July 21, 1953 Y UNITED-"STATES PATENT, OFFICE WORK HOLDER SUPPORTED AND cLAMPEn 7 p BETWEEN VISE JAWS g CarlM.Schinitt,Villa Park,Ill. i Application August 27, 1951, Serial No. 243,817

1 i I This invention relates to new anduseful improvements in work holders and the primaryobject of the present invention is to provide a work holder having improved features over that disclosed in my U. S. Patent No. 2,532,952, issued December 5, 1950. 7 h I An important object of the present invention is to provide a work holder supported and clamped between vise jaws and including a pair of coacting jaw members, whereby the holder is capable of grasping any irregular shaped article even if the surfaces of the article to be held are in non-parallel planes.

A further object of the present invention is to provide a work holder including a pair of pivotally connected shanks that are spring urged apart and which shanks each support a rotatable gripping element, one of the gripping elements being rotatable about an axis coaxial with one shank and the other gripping element being rotatable about an axis transversely'of the other shank and perpendicular to the axis of rotation for the other gripping element.

A still further aim of the present invention is to provide a work holder, adapted to be supported and clamped between vise jaws, that is simple and practical in construction, strong and reliable in use, small and compact in structure, inexpensive to manufacture, and otherwise well adapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings.

forming part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a side elevational view of the work holder clamped and supported between the jaws of a vise, and shows, partly in cross-section, a clamped work piece;

Figure 2 is a perspective view of the present invention;

Figure 3 is a plan view of Figure 2 but showing the swivel jaw rotated slightly; and,

Figure 4 is a vertical sectional view taken substantially on the plane-of section line 44 in Figure 3.

Referring now to the drawings in detail, wherein for the purpose of illustration, there is disclosed a preferred embodiment of the present invention, the numerals I and I2 represent'a pair of shanks whose lower ends I4 and 16 are bifurcated to receive the ends of a connecting link 18. Parallel pins 20 and 22 extend trans- 2. Claims. (01. 81-38) a 2 1 versely through the bifurcated ends l4 and I6 as well as apertured ends of the link to pivotally secure the shanks together.

The inner face of the shank H1 is formed with a relatively short groove 24 that opposes a relatively long groove 26 in the inner face of shank One end of a leaf spring 28 is securedin jaw member is bifurcated to accommodate a" gripping element 32 having an axial bore 34 through which a supporting rod 36 extends. The

ends of the rod 36 project through apertures in the furcations of the jaw member and permit rotation of the gripping element,

Gripping element 32 is substantially cylindrical but is formed with a hat portion 38 made by removing a segmental slice from the periphery of the cylinder 32. The flat portion 38 is provided with a V-shaped groove 46 that extends perpendicular to rod 36.

The upper end of shank I2 is formed with an axial, cylindrical recess 42 that terminates in a threaded bore 44 of reduced diameter. A second head or jaw member 46 is rotatably supported on the upper end of shank l2 and includes a depending cylindrical portion 46 that is rotatably positioned in recess 42. The inclined face 50 of jaw member '46 extends upwardly across the gripping element 32.

Means is provided for removably securing jaw member 46 to shank l2. This means comprises a headed fastener 52 whose head 54 enters the upper enlarged end 56 of a vertical bore 58 extending through jaw member 46 and the projection 48. The lower threaded end 60- of the fastener is threaded in the bore 44.

In practical use of the present invention, the lower ends of shanks l0 and [2 are placed between vise jaws J, which are adjusted toward each other in order to clamp a work piece W between jaw members 30 and 46. Due to the swivel what I is 1. A work holder supported and clamped between vise jaws and comprising, a pair of shanks having pivotally connected lower ends, a first head integrally formed with the upper end of one shank and having a slot therein, a rotatable jaw element rotatably supported in the slot, the upper end of the other shank having a 'cyiindrical axial recess therein, a second head having a hollow cylindrical shank-forming projection received in said recess for rotation and having a fiat undersurface resting upon the upper end of said other shank, and a fastener extend ing through the second head andthe pr j ction and secured to said other shank. I

2. The combination of claim 1, and'a sprin arm secured to one shank and engaging the other shank to yieldingly urge the shanks apart.

3. A work holder supported and clamped between vise jaws and comprising first and second shanks having upper and lower ends and inner opposed faces, the lower ends of said shanks being bifurcated, a link terminally pivoted to the bifurcated lower ends of said shanks, the inner face of each shank having a groove therein, a spring arm secured in one groove and received in the other groove to urge the shanks apart, a bifurcated laterally projecting head at the upper end of the first shank, a gripping element rotatably supported between the furcations of said bifurcated head, the upper end of said second shank having a cylindrical axial recess therein, said second shank also having an internally threaded bore communicating with the lower end of said recess, a second head extending across said gripping element and including a hollow cylindrical shank-forming portion r0- tatably positioned in the recess and includin a flat undersurface resting on the upper end of said second shank, and a headed fastener extending through the head and the cylindrical portion and including a lower threaded end receivably engaged in the bore, said second head having a vertical opening extending axiall into the cylindrical portion and receiving the head of the fastener.

CARL M. SCHMITT References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 32,093 Tilliers Apr. 16, 1861 170,319 Weaver Nov. 23, 1875 1,110,683 Goodwin Sept. 15, 1914 2,532,952 Schmitt Dec. 5, 1950 2,552,094 Hamon et al. May 8, 1951 

